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azamat
3 years ago
8

A book is thrown downward from the library window with a speed of 2.0 s m and lands on the ground 5.0 m. We can ignore air resis

tance. What is the final velocity of the book in m/s?
Physics
2 answers:
OlgaM077 [116]3 years ago
6 0

Answer:

<h3>10.1m/s</h3>

Explanation:

Using the equation of motion v² = u²+2as where;

v is the final velocity

u is the initial velocity

a is the acceleration due to gravity

s is the height of fall

Given

u = 2.0m/s

s = 5.0m

g = 9.81m/s²

Required

final velocity of the book in m/s

Substitute the given parameters into the formula;

v² = u²+2as

v² = 2²+2(9.81)(5)

v² = 4+98.1

v² = 102.1

v = √102.1

v = 10.1m/s

<em>Hence the final velocity of the book in m/s is 10.1m/s</em>

Pie3 years ago
3 0

Answer:

-10

Explanation:

I got that mf right

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